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13cde9f4c6
We only ever do GEM object creation by handle, as there is no kernel internal use of GEM objects. Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
158 lines
5.1 KiB
C
158 lines
5.1 KiB
C
/*
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* Copyright (C) 2015 Etnaviv Project
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ETNAVIV_DRV_H__
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#define __ETNAVIV_DRV_H__
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#include <linux/kernel.h>
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#include <linux/clk.h>
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#include <linux/cpufreq.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/pm.h>
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#include <linux/pm_runtime.h>
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#include <linux/slab.h>
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#include <linux/list.h>
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#include <linux/types.h>
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#include <linux/sizes.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_gem.h>
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#include <drm/etnaviv_drm.h>
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struct etnaviv_cmdbuf;
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struct etnaviv_gpu;
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struct etnaviv_mmu;
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struct etnaviv_gem_object;
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struct etnaviv_gem_submit;
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struct etnaviv_file_private {
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/* currently we don't do anything useful with this.. but when
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* per-context address spaces are supported we'd keep track of
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* the context's page-tables here.
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*/
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int dummy;
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};
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struct etnaviv_drm_private {
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int num_gpus;
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struct etnaviv_gpu *gpu[ETNA_MAX_PIPES];
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/* list of GEM objects: */
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struct mutex gem_lock;
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struct list_head gem_list;
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struct workqueue_struct *wq;
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};
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static inline void etnaviv_queue_work(struct drm_device *dev,
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struct work_struct *w)
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{
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struct etnaviv_drm_private *priv = dev->dev_private;
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queue_work(priv->wq, w);
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}
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int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
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struct drm_file *file);
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int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma);
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int etnaviv_gem_fault(struct vm_fault *vmf);
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int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
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struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
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void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
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void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
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int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
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struct vm_area_struct *vma);
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struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj);
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struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
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struct dma_buf_attachment *attach, struct sg_table *sg);
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int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
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void etnaviv_gem_prime_unpin(struct drm_gem_object *obj);
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void *etnaviv_gem_vmap(struct drm_gem_object *obj);
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int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
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struct timespec *timeout);
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int etnaviv_gem_cpu_fini(struct drm_gem_object *obj);
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void etnaviv_gem_free_object(struct drm_gem_object *obj);
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int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
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u32 size, u32 flags, u32 *handle);
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int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
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uintptr_t ptr, u32 size, u32 flags, u32 *handle);
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u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu);
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u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr);
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void etnaviv_buffer_end(struct etnaviv_gpu *gpu);
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void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event);
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void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event,
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struct etnaviv_cmdbuf *cmdbuf);
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void etnaviv_validate_init(void);
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bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu,
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u32 *stream, unsigned int size,
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struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size);
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#ifdef CONFIG_DEBUG_FS
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void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
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struct seq_file *m);
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#endif
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void __iomem *etnaviv_ioremap(struct platform_device *pdev, const char *name,
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const char *dbgname);
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void etnaviv_writel(u32 data, void __iomem *addr);
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u32 etnaviv_readl(const void __iomem *addr);
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#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
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#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
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/*
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* Return the storage size of a structure with a variable length array.
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* The array is nelem elements of elem_size, where the base structure
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* is defined by base. If the size overflows size_t, return zero.
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*/
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static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base)
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{
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if (elem_size && nelem > (SIZE_MAX - base) / elem_size)
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return 0;
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return base + nelem * elem_size;
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}
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/* returns true if fence a comes after fence b */
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static inline bool fence_after(u32 a, u32 b)
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{
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return (s32)(a - b) > 0;
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}
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static inline bool fence_after_eq(u32 a, u32 b)
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{
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return (s32)(a - b) >= 0;
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}
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static inline unsigned long etnaviv_timeout_to_jiffies(
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const struct timespec *timeout)
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{
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unsigned long timeout_jiffies = timespec_to_jiffies(timeout);
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unsigned long start_jiffies = jiffies;
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unsigned long remaining_jiffies;
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if (time_after(start_jiffies, timeout_jiffies))
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remaining_jiffies = 0;
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else
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remaining_jiffies = timeout_jiffies - start_jiffies;
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return remaining_jiffies;
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}
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#endif /* __ETNAVIV_DRV_H__ */
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